|  | @@ -8,6 +8,7 @@ from ..utils import (
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				|  |  |      ExtractorError,
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				|  |  |      determine_ext,
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				|  |  |      int_or_none,
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				|  |  | +    float_or_none,
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				|  |  |      js_to_json,
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				|  |  |      strip_jsonp,
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				|  |  |      strip_or_none,
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				|  | @@ -464,6 +465,7 @@ class PBSIE(InfoExtractor):
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				|  |  |                      redirects.append(redirect)
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				|  |  |                      redirect_urls.add(redirect_url)
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				|  |  |  
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				|  |  | +        chapters = []
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				|  |  |          # Player pages may also serve different qualities
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				|  |  |          for page in ('widget/partnerplayer', 'portalplayer'):
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				|  |  |              player = self._download_webpage(
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				|  | @@ -479,6 +481,20 @@ class PBSIE(InfoExtractor):
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				|  |  |                      extract_redirect_urls(video_info)
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				|  |  |                      if not info:
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				|  |  |                          info = video_info
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				|  |  | +                if not chapters:
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				|  |  | +                    for chapter_data in re.findall(r'(?s)chapters\.push\(({.*?})\)', player):
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				|  |  | +                        chapter = self._parse_json(chapter_data, video_id, js_to_json, fatal=False)
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				|  |  | +                        if not chapter:
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				|  |  | +                            continue
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				|  |  | +                        start_time = float_or_none(chapter.get('start_time'), 1000)
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				|  |  | +                        duration = float_or_none(chapter.get('duration'), 1000)
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				|  |  | +                        if start_time is None or duration is None:
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				|  |  | +                            continue
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				|  |  | +                        chapters.append({
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				|  |  | +                            'start_time': start_time,
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				|  |  | +                            'end_time': start_time + duration,
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				|  |  | +                            'title': chapter.get('title'),
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				|  |  | +                        })
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				|  |  |  
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				|  |  |          formats = []
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				|  |  |          http_url = None
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				|  | @@ -588,4 +604,5 @@ class PBSIE(InfoExtractor):
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				|  |  |              'upload_date': upload_date,
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				|  |  |              'formats': formats,
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				|  |  |              'subtitles': subtitles,
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				|  |  | +            'chapters': chapters,
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				|  |  |          }
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